/*
 * Copyright 2020 The Bazel Authors. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.idea.blaze.base.async.process;

import com.intellij.openapi.extensions.ExtensionPointName;
import java.io.File;
import java.util.Optional;

/** Allows redirecting to alternate locations at binary invocation time. */
public interface BinaryPathRemapper {

  ExtensionPointName<BinaryPathRemapper> EP_NAME =
      ExtensionPointName.create("com.google.idea.blaze.BinaryPathRemapper");

  /**
   * Given an absolute path or command and, returns a corresponding remapped file, or an empty
   * optional if it's not remapped.
   */
  Optional<File> getRemappedBinary(String path);

  /**
   * Given an absolute path or command and, returns a corresponding remapped file, or an empty
   * optional if it's not remapped.
   */
  static Optional<File> remapBinary(String path) {
    return EP_NAME
        .extensions()
        .map(m -> m.getRemappedBinary(path))
        .filter(Optional::isPresent)
        .findFirst()
        .orElse(Optional.empty());
  }
}
